"It was supposed to be a domestic United States flight," Badat told the Manhattan courtroom.

He ultimately backed out of the plan after his parents told him he "better not" become a terrorist. Reid, who went ahead and attempted to detonate his shoe bomb on a Miami-bound flight in December 2001, was subdued by passengers and later sentenced to life in prison after pleading guilty to terrorism charges.

Badat also told the court about his own life and how he was radicalized in 1997 and later served 6 and a half years in a British prison on charges of conspiracy to harm an aircraft, the Times reported.

Sulaiman Abu Ghaith, bin Laden's 48-year-old son-in-law, is on trial in the U.S. for supporting terrorists and conspiring to kill Americans, though Badat said he never saw the high-ranking al-Qaida member during his training in Afghanistan from 1999 to 2002.

But the prosecution contends Abu Ghaith was a key player in the plans to attack the U.S., and pointed to an Oct. 2001 al-Qaida video of him as proof.

"The storm of airplanes will not abate," he warns in the clip, which was showed in court Monday. "America must know . . . the battle will not leave its land."